Abstract
The ultimate goal of nanofabrication is to control the size and positioning. We propose a simple and innovative way to achieve the goal by making the best use of a strong photon-nanoparticle interaction. Because of its large surface to volume ratio and carrier confinement in a nanoparticle, the semiconductor nanoparticle can be easily modified or synthesized by the light irradiation. We have observed two unique phenomena to manifest the photon-nanoparticle interaction: photo-oxidation and photo-synthesis. In both photo-oxidation and photo-synthesis, the sizes are self-limited to the photon energy of monochromatic light such as laser and are well controlled.
